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当前位置: 首页 > 文章 > 两种增效剂对马尾松毛虫多功能氧化酶的抑制作用研究 江西农业大学学报 2008,30 (6) 1057-1060
Position: Home > Articles > Studies on the Inhibition Effect of Two Synergists on Mixed-Function Oxidases(MFO) of Dendrolimus punctatus Walker Acta Agriculturae Universitatis Jiangxiensis 2008,30 (6) 1057-1060

两种增效剂对马尾松毛虫多功能氧化酶的抑制作用研究

作  者：
庞会忠;曹茂琴;彭龙慧;罗俊根;龙伟;张金波
单  位：
江西省森林病虫害防治局;江西农业大学
关键词：
增效剂;马尾松毛虫;多功能氧化酶;细胞色素P450;氯氰菊酯
摘  要：
比较江西贵溪和金溪马尾松毛虫种群对氯氰菊酯的耐药性与MFO细胞色素P450活性,并测定PB和SV1两种增效剂对马尾松毛虫MFO细胞色素P450活性的抑制作用,结果表明耐药性强的贵溪马尾松毛虫种群体内MFO细胞色素P450含量较耐药性弱的金溪种群高。PB和SV1对马尾松毛虫体内MFO细胞色素P450的抑制作用随浓度的增加有所加强,且PB对马尾松毛虫体内不同组织MFO细胞色素P450的抑制作用较SV1强。表明PB和SV1对拟除虫菊酯杀虫剂的增效作用机制之一是直接抑制了马尾松毛虫MFO细胞色素P450的活性,降低了其对拟除虫菊酯杀虫剂的解毒作用。
译  名：
Studies on the Inhibition Effect of Two Synergists on Mixed-Function Oxidases(MFO) of Dendrolimus punctatus Walker
作  者：
PANG Hui-zhong1,CAO Mao-qin1,PENG Long-hui1,LUO Jun-gen2,LONG Wei2,ZHANG Jin-bo1 (1.Jiangxi Agricultural University,Nangchang 330045,China;2.Jiangxi Forest Pest & Disease Control Station,Nanchang 330006,China)
关键词：
synergist;Dendrolimus punctatus;mixed-function oxidases(MFO);cytochrome P450;cypermethrin
摘  要：
The tolerance to cypermethrin and the activity of cytochrome P450 of mixed-function oxidases(MFO) were compared between Guixi and Jinxi populations of Dendrolimus punctatus Walker in Jiangxi Province,and the inhibition effect of synergists PB and SV1 on MFO of D.punctatus was tested by biochemical method.The results showed that the activity of cytochrome P450 was higher in more cypermethrin-tolerance Guixi population than in Jinxi population.The inhibition effects of PB and SV1 on cytochrome P450 were stronger as the concentration of PB and SV1 increased,and the inhibition effects of PB on cytochrome P450 in various tissues were stronger than that of SV1,which indicated that one of the synergist mechanisms of PB and SV1 was that they could inhibit the activity of cytochrome P450 directly,hence decreased the detoxifcation ability of cytochrome P450 to pyrethroids in D.punctatus.

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